all: fix misprints in comments

These were found by grepping the comments from the go code and feeding
the output to aspell.

Change-Id: Id734d6c8d1938ec3c36bd94a4dbbad577e3ad395
Reviewed-on: https://go-review.googlesource.com/10941
Reviewed-by: Aamir Khan <syst3m.w0rm@gmail.com>
Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
diff --git a/src/net/file_test.go b/src/net/file_test.go
index f358f70..003dbb2 100644
--- a/src/net/file_test.go
+++ b/src/net/file_test.go
@@ -156,7 +156,7 @@
 
 	{net: "udp6", addr: "[::1]:0"},
 
-	// TODO(mikioh,bradfitz): renable once 10730 is fixed
+	// TODO(mikioh,bradfitz): reenable once 10730 is fixed
 	// {net: "ip4:icmp", addr: "127.0.0.1"},
 
 	{net: "unixgram", addr: "@gotest3/net"},